Spam has gone to the dogs, according to the latest monthly spam Index from Clearswift.
The index has found dog-related products have made a bizarre entry into the world of unsolicited e-mail.
Clearswift's Monthly Spam Index for May found spammers touted a whole host of canine-centric items, from dog nutrition tablets to dog-training handbooks.
The Spam Index also recognized the re-emergence of e-cards containing malicious software, which are traditionally more popular around Christmas.
However, the highest profile spam of the month was the 'Michael Jackson spam', which claimed the pop star had committed suicide and carried a Trojan in the Web link which installed malicious software on recipients' computers.
The index also found that pornographic spam tripled from 5.62 percent to 14.05 percent in May.
Clearswift Asia Pacific managing director Peter Croft claims that e-mail threats come in all guises and organizations need to be prepared.
"Antivirus is a good start but it's nowhere near enough," Croft said.
"Companies need to use intelligent content filtering software which can block executable files for the most robust defence possible."